Finding the Fourth Proportional to 12,111.15, 16,713.63 and 6,806.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.15 : 16,713.63 = 6,806.34 : x
2. Step 2: Convert to fraction form
   12,111.15/16,713.63 = 6,806.34/x
3. Step 3: Cross multiply
   12,111.15x = 16,713.63 × 6,806.34
4. Step 4: Simplify right side
   12,111.15x = 113,758,648.41
5. Step 5: Solve for x
   x = 113,758,648.41/12,111.15
6. Step 6: Final answer
   x = 9,392.89